Improvement in machine for jointing barrel-staves



1 aient lim* JOHNY B. BELL, 0F PITTSBURG, PENNSYLVANIA.

Letters Patent No. 98,735, (lated January 11, 1870.

IMPROVEMENT IN MACHINE FOR JOINTING- BARREL-STAVES.

n The Schedule referred to in these Letters Patent and making part ofthe same To all 'whom it 'may concern.-

Be it known that I, JOHN B. BELL, of Pittsburg, in the county ofAllegheny, and State of Pennsylvania,

have invented a new and useful Improvement in Machinefor J ointingStaves for Barrels, Gasks, 85e.; and I do hereby declare that thefollowing is a full, clear, and exact description thereof', referencebeing had to the accompanying drawing, and to the letters and iigures ofreference marked thereon.

The nature of my invention consists in the feedingframe, constructed,arranged, and operating-in combination with a vertical cylinder,provided with cutting-bits, as hereinafter described.

To enable others skilled in the art to make and use my invention, I willproceed to describe its constructioujand operation.

In the accompanying drawings, which form part of my specitication.-

Figure l is a side elevation of my improvement in machine for jointingstaves.

4 Figure 2 represents a top view or pla-n of the same, with the upperportion ofthe frame removed.

In the accompanying drawings- A B C represent the several parts oftheframe, in which the cylinder D rotates.

e represents the cutting-kuives or bits, which are arranged in the faceof the cylinder D, obliquely to its longitudinal plane, and at an angleto its face corresponding to the back inclination ofthe bit oftheordinary hand-plane.v

By thus arranging the knives or4 cutting-bits, their cutting-action willbe from the centre of the edge of the stave and toward each end of it,Ithe cutting being on au oblique line, and with the grain ofthe wood.

The uner ends of the knives should project past each other, as shown infig.- 1, and the desired cnt-tingset given'by means of a suitable gauge.

'lhe cylinder D is gradually contracted toward the centre, as indicatedby the dotted lines 5. This contraction of the cylinder must correspondto the bilge of the stave.

The frame or bench f, for supporting and holding the stave while beingjointed, is pivoted in the` ends A and B of the frame in Vwhich thecylinder rotates,- and is provided with a clamping-lever, g', points 3,and

a notch, 2. l

The distance from the point of pivot 6 to the face 8, of the frame orbench, should be equal to half the diameter'of the keg, barrel, or cask,for which the stave is'intended. By thu's arranging the frame or bench,

the cutting-action of the knives or bits will be on a line at rightangles to a line radiating from the centre of the cylinder, as indicatedby dotted lines 4 in Iig. 2. The operation of my imprmfed staye-jointingmachine is as follows:

Thelstave s is placed on the frame or bench j, the lower end of thestave. is placed in notch- 2, and, by

pressing'on lever g, the stave will be held rmly in notch 2, and forcedagainst the face 8 of the frame or bench, and the points 3 will preventany side movemeut. Now, by turning the frame or bench f to 'the right,and then to the left, against the cylinder as indicated by the dottedlines :v1 and ce, the edge of the stave will be perfectly and uniformlydressed-and jointed. t

The cylinder D should be rapidly rotated, and may be placed in avertical or horizontal posit-ion, and be provided with one or moreframes or benches f, so that one or more persons, at the saine time, mayjoint staves.

The frame or bench finay be so constructed as `to adapt it to stavcs ofdifferent lengths, and so pivoted that in jointing the stave, theoutside portion of the seam, between the staves, may be open' orotherwise.

Having thus described my improvement,

The pivoted frame f, constructed, arranged, and op. erating as hereindescribed, in combination with the cylinder D, as and for the purposeset forth.

Y JOHN B. BELL.

Witnesses:

JAMES THOMPSON, JAMES J. JOHNSTON.

